CVE-2025-22150— Undici Uses Insufficiently Random Values
Quick assessment
Affected
nodejs undici
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
undici是Node.js开源的一个HTTP/1.1客户端。 Undici 4.5.0版本、5.28.5之前版本、6.21.1版本和7.2.3版本存在安全特征问题漏洞，该漏洞源于使用可预测的Math.random生成multipart/form-data请求的边界，允许攻击者在特定条件下篡改请求。
Possible ATT&CK Techniques 1 AI
T1071 · Application Layer Protocol
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I. Basic Information for CVE-2025-22150
Vulnerability Information
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Vulnerability Title
Undici Uses Insufficiently Random Values
Source: CVE Program / CVE List V5
Vulnerability Description
Undici is an HTTP/1.1 client. Starting in version 4.5.0 and prior to versions 5.28.5, 6.21.1, and 7.2.3, undici uses `Math.random()` to choose the boundary for a multipart/form-data request. It is known that the output of `Math.random()` can be predicted if several of its generated values are known. If there is a mechanism in an app that sends multipart requests to an attacker-controlled website, they can use this to leak the necessary values. Therefore, an attacker can tamper with the requests going to the backend APIs if certain conditions are met. This is fixed in versions 5.28.5, 6.21.1, and 7.2.3. As a workaround, do not issue multipart requests to attacker controlled servers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不充分的随机数
Source: CVE Program / CVE List V5
Vulnerability Title
undici 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
undici是Node.js开源的一个HTTP/1.1客户端。 Undici 4.5.0版本、5.28.5之前版本、6.21.1版本和7.2.3版本存在安全特征问题漏洞，该漏洞源于使用可预测的Math.random生成multipart/form-data请求的边界，允许攻击者在特定条件下篡改请求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-22150
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Patches & Fixes for CVE-2025-22150 (4)
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Backport of c2d78cd · nodejs/undici@711e207 · GitHub x_refsource_MISC
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Merge commit from fork · nodejs/undici@c2d78cd · GitHub x_refsource_MISC
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Merge commit from fork · nodejs/undici@c3acc60 · GitHub x_refsource_MISC
Vendor Advisories for CVE-2025-22150 (2)
Security Blog Posts for CVE-2025-22150 (1)
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V. Comments for CVE-2025-22150
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